Showing posts with label brain tumors. Show all posts
Showing posts with label brain tumors. Show all posts

Friday, August 19, 2011

CELL PHONE RADIATION MAY MAKE YOU STERILE


First it was brain tumors, now researchers are saying cell phone radiation can make men sterile. According to an article in the latest Journal of Andrology, recent reports have suggested there is a “possible link between cell phone use and semen quality.” One study performed on rabbits found that those who were exposed to a mobile phone emitting at 800MHz for 8 hours a day over 12 weeks had a decrease in sperm concentration just six weeks into the study. Sperm motility, or how properly a sperm can swim towards can egg, began to falter in the tenth week. Similar results were found in rats and mice, too.

Clinical studies have concluded that cellular use is “associated with decreased sperm concentration, motility, morphology, and viability.” According to Dr. Sandro La Vignera from University of Catania, exposure to radiofrequency electromagnetic radiation (EF-EMR) “reduces testosterone biosynthesis, impairs spermatogenesis, and damages sperm DNA.” Despite the evidence, however, the author concludes that more studies are still necessary.

Tuesday, July 5, 2011

EVIDENCE "INCREASING AGAINST" CELL PHONE CANCER RISK


Reuters is reporting that despite a recent move to classify mobile phones as possibly carcinogenic, the scientific evidence increasingly points away from a link between their use and brain tumors, according to a new study on Saturday.

A major review of previously published research by a committee of experts from Britain, the United States and Sweden concluded there was no convincing evidence of any cancer connection.

It also found a lack of established biological mechanisms by which radio signals from mobile phones might trigger tumors.

"Although there remains some uncertainty, the trend in the accumulating evidence is increasingly against the hypothesis that mobile phone use can cause brain tumors in adults," the experts wrote in the journal Environmental Health Perspectives.

Mobile phone use has risen hugely since the early 1980s, with nearly 5 billion handsets in use today, and controversy about their potential link to the main types of brain tumor, glioma and meningioma, has never been far away.

The largest study to date, published last year, looked at almost 13,000 mobile phone users over 10 years.

Anthony Swerdlow of Britain's Institute of Cancer Research and colleagues analyzed its results in detail but concluded it gave no clear answer and had several methodological problems, since it was based on interviews and asked subjects to recall phone use going back several years.

Significantly, other studies from several countries have shown no indication of increases in brain tumors up to 20 years after the introduction of mobile phones and 10 years after their use became widespread, they added.
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